A glow of light brighter than a trillion suns reveals the location of a rare double black hole galaxy

The mysterious glows in the sky brighter than a trillion suns are actually a glow from two distant black holes orbiting each other, astronomers have confirmed in new observations that solve a decades-old mystery.

New research finds that the galaxy OJ 287, located 5 billion light-years from Earth in the constellation of Cancer, is anchored by two black holes, one supermassive and one smaller. Although these two black holes look like a single blob on telescope images, they send out different types of electromagnetic signals, allowing astronomers to decipher their identities.

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